msk-rs2/ipv4: show protocols all Megagroup

Megagroup BGP --- down 15:36:11.282

Description:    Megagroup/60357/AS60357
  BGP state:          Down
    Neighbor address: 31.44.187.88
    Neighbor AS:      60357
    Local AS:         50817
  Channel ipv4
    State:          DOWN
    Table:          master4
    Preference:     100
    Input filter:   (unnamed)
    Output filter:  (unnamed)
    Import limit:   5000
      Action:       restart